Just as research has shown the health benefits of being in nature, the Victorian government has allowed its parks to fall into disrepair. A Cranbourne family arrives at a Rubicon campsite to find a thicket of blackberry weeds adjoining a power station. A park ranger’s job is reduced to cleaning toilets. A Preston couple can’t find a parking spot at Warburton, where traffic to Mount Donna Buang is choked, and a bike trail plan divides the community.